Surah Ad Dukhan (The Smoke)

 Virtues of Surah Ad Dukhan (44) 

Ibn Masud (radiAllahu anhu) said, ‘The ‘ha-meems’ are the embelishments

of the Quran [Hakim, Dhahabi, Ibn Al Mundhir & Baihaqi]

The ‘ha-meems’ refer to the seven Surahs which have ha-meem at the start.

Abu Hurairah (radiAllahu anhu) narrated that the messenger of Allah 

صلى الله عليه وسلم  said, ‘Whosoever recites Surah ad-Dhukhan every night,

seventy thousand angels will ask forgiveness for him’ [at-Tirmidhi]

Abu Hurairah (radiAllahu anhu) narrated that the messenger of Allahصلى الله عليه وسلم 

said, ‘Whoever reads surat Ya-Sin in the night, he will be forgiven. And whoever

reads Ha-Meem, the one in which smoke is mentioned, he will be forgiven.’
[Abu Ya’la reported it]

The messenger of Allahصلى الله عليه وسلم said, Chapters beginning with Ha-Meem 

are beautiful, fresh, fragrant, splendid mesdows. Whosoever desires to walk

around in the meadows of Paradise should recite these surahs’
[Al-Tadhkar Fi Afdal Al-Adhkar by Imam al-Qurtubi] 

Note : In a narration it is mentioned that Rasulullah صلى الله عليه وسلم had said :

Whoever recites Surah Dukhaan on the night of Jumah ( i.e. Thursday night)

70 thousand Malaaikah ask for forgiveness for that person until the morning.